Samuel P. Heintzelman

Samuel Peter Heintzelman (30 September 1805-1 May 1880) was a Major-General of the US Army during the American Civil War.

Biography
Samuel Peter Heintzelman was born in Manheim, Pennsylvania in 1805, and he graduated from West Point in 1826. He served as a US Army lieutenant and quartermaster during the war with the Seminole in Florida before fighting in the Mexican-American War, the war with the Yuma in California, and the war with Juan Cortina's Mexican insurgents in Texas. When the American Civil War broke out, Heintzelman became a divisional commander of the Union army in Virginia, and he later led the III Corps of the Army of the Potomac. His corps bore the brunt of the fighting at Williamsburg during the Peninsula Campaign, but his popularity was overshadowed by that of aggressive commanders Joseph Hooker and Philip Kearny, leading to him being removed from command in late 1862. He commanded the Northern Department for the rest of the war, and he retired in 1869. He died in Washington DC in 1880 at the age of 74.